Cetuximab in Combination With Dabrafenib and Tislelizumab in BRAF Mutated Treatment of Advanced Colorectal Cancer

Advanced Colorectal Cancer Clinical Trial

Official title:

Cetuximab in Combination With Dabrafenib and Tislelizumab in BRAF Mutated Treatment of Advanced Colorectal Cancer: a Prospective, Exploratory, Phase II Clinical Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT05963087
• Other study ID #: Braf-001
• Status: Not yet recruiting
• Phase: N/A
• Start date: August 2023
• Est. completion date: June 2026

Study information

• Verified date: July 2023
• Source: Zhejiang Cancer Hospital
• Contact: Wangxia Lv
• Phone: 13757141026
• Email: lvwangxia[@]163.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

To explore the efficacy and safety of Cetuximab in combination with dabrafenib and Tislelizumab in BRAF mutated treatment of advanced colorectal cancer

Description:

Due to Encorafenib has not been marketed in China, it is difficult to benefit patients, and there are no reported studies of Dabrafenib, also a BRAF inhibitor, in combination with anti-EGFR monoclonal antibody and immunotherapy in BRAF mutated mCRC. Therefore, we intend to use Dabrafenib in combination with cetuximab and Tislelizumab in the treatment of BRAF V600E mutated patients with advanced colorectal cancer to observe the initial efficacy and safety.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 22
• Est. completion date: June 2026
• Est. primary completion date: February 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

• 1. Histopathological diagnosis of advanced colorectal cancer; 2. Previous first-line standard treatment failed or could not tolerate first-line standard treatment; 3. BRAF V600E mutation (NGS or ARMS-PCR assay); 4.18 years old= Age=75 years old; 5. PS score 0-1; 6. At least one measurable or evaluable lesion according to RECIST v1.1; 7. Baseline color Doppler ultrasound: left ventricular ejection fraction (LVEF) =60%; 8. Has adequate organ and bone marrow function; 9. Expected survival =12 weeks 10. Female subjects of childbearing age or male subjects whose sexual partner is a female of childbearing age are required to take effective contraceptive measures throughout the treatment period and for 6 months after the treatment period 11. Sign a written informed consent and be able to comply with the visit and related procedures required by the program;

Exclusion Criteria:

• 1. Malignant diseases other than colorectal cancer diagnosed within 5 years prior to first administration (excluding radical treatment)Carcinomas in situ with sexual resection); 2. Currently participating in the intervention clinical study treatment, or receiving other study drugs or using study devices within 4 weeks before the first dose; 3. Previous treatment with BRAF inhibitors, MEK inhibitors, anti-PD-1, anti-PD-L1, or anti-PD-L2 drugs, or drugs that target another stimulus or synergically inhibit T cell receptors (e.g., CTLA-4, OX-40, CD137); 4. Received systemic systemic treatment with Chinese patent drugs with anti-tumor indications or immunomodulatory drugs (including thymosin, interferon, interleukin, except for local use to control pleural fluid) within 2 weeks before the first administration; 5. An active autoimmune disease requiring systemic treatment (e.g. with disease-modifying drugs, glucocorticoids, or immunosuppressants) has occurred within 2 years prior to initial administration. Replacement therapies (such as thyroxine, insulin, or physiologic glucocorticoids for adrenal or pituitary insufficiency) are not considered systemic therapy; 6. Were receiving systemic glucocorticoid therapy (excluding topical glucocorticoids by nasal spray, inhalation, or other route) or any other form of immunosuppressive therapy within 7 days prior to initial administration of the study

7. Known allogeneic organ transplantation (except corneal transplantation) or allogeneic hematopoietic stem cell transplantation 8. Known allergy to any monoclonal antibody formulation ingredient (grade 3 or above allergic reaction) 9. Has not fully recovered from toxicity and/or complications caused by any intervention before starting treatment (i.e., = grade 1 or baseline, excluding weakness or hair loss); 10. Known history of human immunodeficiency virus (HIV) infection (i.e. HIV 1/2 antibody positive); 11. Untreated active hepatitis B (defined as HBsAg positive and HBV-DNA copy number detected greater than the upper limit of normal value in the laboratory of the study center); 12. Active HCV-infected subjects (HCV antibody positive and HCV-RNA levels above the lower limit of detection); 13. Received live vaccine within 30 days prior to the first dose (cycle 1, day 1); 14. Pregnant or lactating women; 15. The presence of any serious or uncontrolled systemic disease 16. Medical history or evidence of disease that may interfere with test results, prevent participants from fully participating in the study, abnormal treatment or laboratory test values, or other conditions that the investigator considers unsuitable for enrollment The Investigator considers other potential risks unsuitable for participation in the study.

Related Conditions & MeSH terms

• Advanced Colorectal Cancer
• Colorectal Neoplasms

Intervention

Drug:
• Cetuximab Dabrafenib Tislelizumab
Dabrafenib 150mg,BID, Cetuximab 250mg/m2, Tislelizumab 200mg Treatment every three weeks

Locations

Country	Name	City	State
China	Zhejiang Cancer Institute & Hospital	Hangzhou	Zhejing

Sponsors (1)

Lead Sponsor	Collaborator
Zhejiang Cancer Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Objective response rate (ORR)	CR + PR rate according to the RECIST version 1.1 guidelines.	up to 12 months
Secondary	Progression Free Survival (PFS)	To assess the efficacy of Surufatinib Combine With Immunotherapy and Chemotherapy as second-line therapy to Advanced CRC, patients by assessment of progression free survival (PFS) using Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1).	up to 12 months
Secondary	Overall survival time	OS was calculated from the date of pharmacy to death from any cause.	up to 36 months